raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:662255

Grisel syndrome

Synonyms: Atlantoaxial non-traumatic subluxation

Type
Clinical syndrome
Group
Disorder
Inheritance
Not applicable
Age of onset
Childhood
Status
active

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enGrisel syndromeAtlantoaxial non-traumatic subluxation
frSyndrome de griselTorticolis de Grisel · Torticolis naso-pharyngien · Torticolis nasopharyngien
deGrisel-SyndromAtraumatische atlantoaxiale Subluxation
esSíndrome de GriselSubluxación atlantoaxial no traumática
itSindrome di GriselSublussazione atlanto-assiale non traumatica
nlSyndroom van GriselNiet-traumatische subluxatie van atlanto-axiaal gewricht
ptSíndrome GriselSubluxação atlantoaxial não-traumática
plZespół Grisela= en
csGriselův syndrom= en
ukСиндром ГрізеляАтлантоаксіальний нетравматичний підвивих
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M43.8NTBTattributedvalidated
ICD-11LB73.22NTBTattributedvalidated
MONDO0971080Evalidated
MONDO971080Evalidated
UMLSC0263885Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families173 casesWorldwideCase(s)Validated33274097[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated33274097[PMID]_ORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card